Shaping-machine.



A. R. MURRAY.

SHAPING MACHINE.

APPLIOATIOH FILED AUG.11, 1909.

1,023,268. Patented Apr. 16, 1912.

2 SHEETS-SHEET 1.

W/Tnesses: lm/enlo WflM-AM COLUMBIA PLANOGRAPN co.,\vAsmpm'r0n. u, c,

A. R. MURRAY.

SHAPING MACHINE.

APPLICATION FILED we. 11, 1909.

1,023,268, Patented Apr. 16, 1912.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ARISTIDES REYNOLDS MURRAY, OF CINCINNATI, OHIO, ASSIGNOR TO THECINCINNATI SHAPER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

SHAPING-MACHINE.

Specification of Letters Patent.

Application filed August 11, 1909.

Patented Apr. 16, 1912.

Serial No. 512,323.

To all whom it my concern:

Be it known that I, Ains'rlons REYNOLDS MURRAY, a citizen of the UnitedStates, residing at Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Improvements inShaping-Machines, of which the following is a specification.

My invention relates to shaping machines, and has for its object theprovision of new and improved means for accom lishing and controllingthe feed of the too toward the Work, and the invention will be readilyunderstood from the following description and claims, and from thedrawings, in which latter:

Figure 1 is a side elevation of so much of a shaping machine as isnecessary to illustrate my invention. Fig. 2 is a front elevation of thesame. Fig. 3 is a plan view of the same. Fig. 4 is an enlarged sideelevation of the tool end of the tool-ram and guideway, partly brokenaway, and partly in vertical section on the line zz of Fig. 2. Fig. 5 isa vertical cross-section taken on the line y-y of Fig. 4. Fig. 6 is anenlarged axial section on the line yy of Fig. at

showing the mounting for the ratchet-wheel.

Fig. 7 is a detail in horizontal section on the line ww of Fig. 4:; and,Fig. 8 is a detail in vertical section on the line w-w of Fig. 4.

1 represents the column, on which the tool-ram 2 is caused toreciprocate in a slide way 3 in any ordinary or well-known manner. Foraccomplishlng this reciprocation I have shown a crank-arm 5 integralwith a gear 6, a pinion 7 operated by a drive-shaft 8 meshing with thegear.

9 is a crank-block adjustable in a guideway 10 of the crank-arm by ascrew-rod 11, the crank-pin 12 of the crank-block being journaled in aslide-block 13 having movement in a guideway 14 of a rocker-arm 15pivoted on a shaft 16 to the column and provided with slots 17encompassing antifriction rollers 18 on pins 19 on a positioning block20 adjustable lengthwise of the tool-ram by a screw 21 and secured inadjusted positions by a clamp 22. The adjustment of the crank-blockadjusts the length of stroke of the ram, and the adjustment of thepositioning-block determines the location of stroke of the ram.

25 is a swivel-block having a trunnion 26 journaled in the bearing 27 atthe forward end of the ram. The swivel-block carries a tool-slide 28 onwhich a tool 29 is adapted to be suitably secured. The tool-slide isadjustable toward and from the work, which is arranged to be supportedon a table 30, there being a guideway 31 between the toolslide and theswivel-block. The adjustment of the tool-slide is accomplished by meansof a screw-rod 32 havin threaded bearing 33 in the swivel-block, t escrew-rod being held against endwise movement in a bearing 34 of thetool-slide. The swivel-block is arranged to be adjusted about its axisfor presenting the tool either in vertical or angular position to thestock being operated on, and held in adjusted position by a clamp-block35 received in an annular groove 36 of the swivel-block, into which itis forced by a set-screw 37.

41 is a bevelgear journaled against endwise movement in a bearing 12 ofthe swivelblock and having spline-connection 43 with the screw-rod.

44 is a longitudinal shaft whose. rotary axis is coincident with theswiveling axis of the swivel-block 25 and which has at its forward end abevel-gear 45 which meshes with the bevel-gear 41 and at its rear end aspiral gear 46 which meshes with a spiral gear 47 on a cross-shaft 48 towhich a bush ing 49 is secured, as by a key 50.

51 is a ratchet-wheel encompassing the bushing 49, the ratchet-wheelhaving frictional engagement with the bushing for causing thecross-shaft 48 to rotate with the ratchet-wheel during the ordinaryresistances of the tool feed, the ratchet-wheel being however permittedto rotate with relation to said cross-shaft upon the presence of greaterresistance than that necessary to accomplish the ordinary tool-feed.Thus the bushing is provided with a flange 52, the ratchet-wheel with aninternal flange 53, there being a collar 54 having a flange 55, theflange of the ratchet-wheel being received between the flanges of thebushing and collar, with friction-disks 56 located between the flange oftho ratchet-wheel and the flanges of the bushing and collar. The collarhas spline-connection 57 with the bushing. A nut 58, threaded to thebushing, permits adjustment of the frictional resistance between theratchet-wheel and bushing.

61 is a pawl-bracket provided with a slot the arrow a,

62 through which a securing-bolt 63 is arranged to be received inselective threaded apertures '64.- located at suitable distances apartlengthwise of the guideway for the tool-ram, and for readily positioningsaid pawl-bracket the same is provided with a longitudinal lug 65adapted to rest upon the upper face of the top-bar 66 of said guideway.The bracket is provided with an upward extension 67 to which an arm 68is pivoted on a bolt 70, the arm being provided with a multi-tooth pawl71, the teeth of which are located in a plane substantially parallelwith the direction of reciprocation of the ratchet-wheel, andsubstantially in line with the tooth of the ratchetwheel, located at apoint in the periphery of the ratchet-wheel intersected b a radial lineat right angles to the path of reciprocation of the ratchet-wheel, beingin the present instance the lowermost tooth of the ratchet wheel.

.As the ratchet-wheel advances toward the mu'lti-t-ooth pawl, in theidle stroke of the ram, the direction of which is indicated byengagement will thus be successively had between a plurality of teeth ofthe ratchet-wheel and a plurality of teeth of the multi tooth pawl,preferably Without substantially moving the teeth of the m-u'lti-toothpawl out of said plane in line with said lowermost tooth of theratchetwheel. The construction is such that, irrespective of the extentof the are through which the ratchet-wheel is caused to turn at eachstep of movement, the turning force will be continuously exerted uponthe ratchet-wheel substantially at the point in its periphery and in thedirection which will require least power for effecting the turning andalso permit the greatest range of movement at each reciprocation of theratchet-wheel. In this manner the greatest range in extent of feed withleast jar upon the parts is provided.

For urging the multi-tooth pawl into engaging position with theratchet-wheel, l provi e a spring 75 received in a socket T6 of the arm68 about a screw 7 7 threaded into the lug 65 of the pawl-bracket at 78,whereby the rear end of the arm 68 is held down yieldingly formaintaining the forward end of said arm having thereon the multiteeth ofthe pawl into contacting range with the ratchet-wheel, a bolt 79 beingprovided on said pawl-bracket against which the arm 68 is arranged toengage for limiting this movement. The form of the teeth on themulti-tooth pawl and the ratchet Wheel is such that the ratchet-wheelmay pass forwardly over the multi-tooth pawl Without causing operationof the ratchet wheel when the tool-ram is moved in reverse direction forits cutting stroke. If it is de sired to bring the multi-tooth pawl intoinoperative position, the end of the arm on which the same is located isdepressed and held in depressed position by a set-screw 80 threaded inthe bracket at 81 and received in a socket 82 of said arm.

In operation, if it is desired to accomplish the feed of the tool towardthe work by means of power, the pawl-bracket 61 is positionedlongitudinally of the slideway for the tool-ram so that one or moreteeth on the multi-tooth pawl may be engaged by a corresponding numberof teeth on the ratchet-wheel during the idle stroke of the tool-ram,for accomplishing tool-feed in successive steps of desired extent,depending on the number of teeth engaged. By the construction stated,the teeth of the ratchetwheel, which sequentially arrive substantiallyin the radial plane of said ratchetwheel which is at right angles to itspath of reciprocation, are engaged by the successive teeth of saidmulti-tooth pawl. The frictional resistance between the ratchetwheel andthe feeding connection for the tool-slide is such as to normally causefeed of the tool upon the consequent operation of the ratchet-wheel.This tool-feed by successive steps will continue during the operation ofthe machine until a rod 85, which is adjustable lengthwise in a bearing86 and held in adjusted position by a setscrew 87 on the tool-slide,strikes a lug 88 on the swivel-block, by which an adjustable stop forthe tool-feed is provided, which overcomes the frictional resistancebetween the ratchet-wheel and the cross-shaft, so that, even if theoperation of the machine continues, the successive turns of theratchet-wheel will not affect the tool-position, the ratchet-wheelthereafter simply turning idly.

If it is desired to manually adjust the tool with relation to the work,the same may be accomplished by means of a hand-wheel 89 secured to thescrew-rod 32, by which rotation is imparted to the screw-rod and theshafts connecting therewith for causing the screw-rod to turnirrespective of engagement of the ratchet-wheel with the multi toothpawl.

I have herein shown and described what appears to me to be the mostadvisable form of my invention, but it is obvious that changes inconstruction may be made without departing from the spirit of myinvention.

Having thus fully described my inven- (ion, what I claim as new anddesire to secure by Letters Patent is:

1. In a shaping machine, the combination with a reciprocating ram and atool-slide, of a rotative part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-Wheel mountedon said ram and having operative connection with said rotative part, amulti-toot-h pawl with the successive teeth of which the successiveteeth of said ratchet-wheel are arranged to make successive engagements,the reeiprocations of said ram moving said ratchet-wheel into and out ofjuxtaposition with said multi-tooth pawl, and means for causinginoperative relation between said pawl and ratchet-wheel during saidlastnamed relations.

2. In a shaping machine, the combination with a reciprocating ram and atool-slide, of a rotative part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-wheel mountedon said ram and having frictional connection with said rotative part, apawl with which the teeth of said ratchet wheel are arranged to makesuccessive engagements for feeding said tool-slide on said. ram with astep-l'iy-step movement, the reciprocations of said ram moving saidratchetwheel into and out of juxtaposition with said pawl, saidfrictional connection be tween said ratehet-wheel and rotative partpermitting cessation of movement of said tool-slide irrespective ofcontinuing engagements between. said ratchet-wheel and pawl.

3. in a shaping machine, the combination with a frame, a reciprocatingram, and a tool-slide, of a rotative part having operative connectionwith said tool-slide for adjusting the same on said ram, a ratchetwheelmounted on said ram having operative connection with said rotative part,a multi-tooth pawl supported from said frame, the teeth of which arelocated in a plane substantially parallel with the path of travel ofsaid ram and coincident with the bottom of said ratchet-wheel forpermitting engagements between successive teeth on said ratchet-Wheeland pawl while said teeth 011 said pawl are maintained substantially insaid plane during travel of said ram in one direction for effecting astep-by-step feed of said tool-slide, means for adjusting saidmulti-tooth pawl lengthwise for determining the number of teeth thereonengaged by said ratchet-wheel, and resilient means for permittingretraction of said mnltitooth pawl with relation to said ratchet-wheelduring travel of said ram in the opposite direction, the reciprocationsof said rain moving said ratchet-wheel into and out of juxtapositionwith said multitooth pawl.

4. In a shaping machine the combination with a ram and tool-slide, of arotative part having operative connection with said toolslide foradjusting the same on said ram, a ratchet-wheel having operativeconnection with said rotative part, a multi-tooth pawl, an adjustablebracket on which the same is mounted, means between said pawl andbracket for normally urging said pawl into the range of saidratchet-wheel, and positioning means between said pawl and bracket forlocating said pawl. in inoperative position with relation to saidratchet-wheel.

in a shaping machine, the combination with a ram and tool-slide. of arotative part having operative connection with said toolslide foradjusting the same on said ram, a train of means for intermittentlyrotating said rotative part with a step-by-step movement coincident withthe reciprocating movements of said ram, said last-named train of meanscomprising a friction driveconnection, and adjustable stopping means forsaid tool-slide nosing stoppage of part of said train of means forcausing relative movement between elements of said friction driveconnection while maintaining said friction drirewonnection in drivingrelation.

(3. ln a shaping machine, the combinatio with a. frame, a ram, and atool-slide, of a rotative part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-wheel mountedon said reciprocating ram and having frictional operative conneetimiwith said rotat'ive part, a multi-tooth pawl, the teeth of which extend.in a line parallel to the path of reciprocation of said ratchet-wheeland coincident with the tooth-position of the tooth of saidratchet-wheel in said line which is farthest removed from the rotaryaxis of said ratchet-wheel, and means for permitting yielding of saidpawl upon retractive movement of said ratchet-wheel.

7. In a shaping machine, the combination with a frame, a ram and atool-slide, of a rotative part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-wheel havingoperative connection with said rotative part, a bracket adjustable onsaid frame, a pawlbar pivoted on said bracket, a multi-tooth pawl forsaid ratchet-wheel on said pawl bar, and a spring between said bracketand pawl-bar for normally urging said multitooth pawl into range of saidratchet-wheel, substantially described.

8. In a shaping machine, the combination with a frame, a ram and atool-slide, of a rotative part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-wheel havingoperative connection with said rotative part, a bracket adjustable onsaid frame, a pawlbar pivoted on said bracket, a multitooth pawl forsaid ratehet -wheel on said pawl bar, a spring between said bracket andpawl-bar for normally urging said multitooth pawl into range of saidratchet-wheel, and means for positioning said pawl-bar for locating themulti-tooth pawl thereon out of range of said ratchet-wheel,substantially as described.

9. In a shaping machine, the combination with a ram and tool-slide,- ofa rotative part having operative connection with said tool slide foradjusting the same on said ram, a train of means for intermittentlyrotating said rotative part with a stcp-by-step move ment coincidentwith the reciprocating movements of said 'am, said last-named train ofmeans comprising a friction driveconnection, means for adjusting thedriving power of said friction driveconnection, and adjustabl stoppingmeans for said toot slide causing stoppage of part of said train ofmeans for causing relative movement between elements of said. frictiondrive-eonnection while nmintaining said friction drive-connertion indriving relation.

10. In a shaping machine, the combination with a reciprocating ram and atoolsiide, of a rotat'ive part having operative connection with saidtool-slide for adjusting the same on said ram, a ratchet-Wheel mountedon said ram and having operative connection with said rotative part, amultitooth pawl with the successive teeth of which the successive teethof said ratcl'iet-wheei are arranged to make successive engagements,means for adjust-ably positioning said multitooth pawl lengthwise ofsaid ram for determining the number of teeth thereof en 'aidratchet-wheel, the reciprocar of said ram moving said ratchet-Wheel intoand out of juxtaposition with said multi-tooth pawl.

In testimony whereof, I have signed my name hereto in the )resencc oftwo subscribing witnesses.

ARISTIDES REYNOLDS MURRAY.

Witnesses:

SAML. \VHITE, O'r'ro FABER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

